>> reporter: he told the crowd four more years of his administration would be good for the middle class. >> the country doesn't succeed when only the rich get richer. we succeed when the middle class gets bigger. >> reporter: a new cbs news poll shows ohio voters are listening. the president has opened up a 10 point lead over mitt romney among likely voters in the battleground state. wednesday the president slammed romney's plan to get tough on china. >> when you see these ads he's promising to get tough on china, it feels a lot like that fox saying, un, we need more secure chicken -- you know, we need more secure chicken coops. >> reporter: the new poll also shows a majority of likely voters in ohio, florida and pennsylvania now give president obama an edge when it comes to handling the economy. the economy is governor romney's key issue and in bedford heights, ohio, he worked to convince voters he has the bess plan for getting americans back to work. >> we -- best plan for getting americans back to work. >> we have got to open more trade to get more good jobs for americansen and i'll